ChemTron VR-500 / VR-1000 / VR-2000 / VR-5L Stainless Steel Benchtop Pressure & Vacuum Reactor

Overview

The ChemTron VR-series benchtop pressure and vacuum reactors are modular, laboratory-scale reaction systems engineered for precise control of chemical synthesis under controlled atmospheric conditions—ranging from ambient pressure to full vacuum and up to 5 bar(g) overpressure. Built on a standardized conical-flange architecture using ASTM A240 316L stainless steel, the VR-500, VR-1000, VR-2000, and VR-5L models provide scalable volumetric capacity (500–5000 mL) while maintaining structural integrity, corrosion resistance, and thermal stability up to 200 °C. These reactors operate on the principle of sealed batch processing with active temperature regulation (via jacket, internal coil, or external heating/cooling circulators) and mechanically driven agitation—enabling reproducible kinetic studies, catalytic screening, hydrogenation, polymerization, and solvent-free reactions in academic, pharmaceutical, and fine chemical R&D environments.

Key Features

• Modular conical-flange design with interchangeable components—including reactor bodies, lids, ports, and sealing elements—supporting rapid reconfiguration for diverse experimental protocols.
• Pressure-rated construction compliant with essential safety requirements of the EU Pressure Equipment Directive (PED 2014/68/EU) for Group 2 fluids; suitable for non-hazardous and low-risk process media.
• Multi-port lid configurations: 5 standardized openings (1/4″ and 1/2″ NPT) on VR-500 through VR-2000; 7 openings on VR-5L—facilitating simultaneous integration of temperature probes, gas inlets/outlets, sampling valves, pH electrodes, and reflux condensers.
• High-integrity sealing system utilizing machined conical flanges paired with chemically resistant elastomeric O-rings (PTFE, FKM, or perfluoroelastomer FFKM), ensuring leak-tight performance across wide temperature and solvent compatibility ranges.
• Top-mounted stirrer drive with variable-speed motor (20–1800 rpm), optionally equipped with single- or double-end face mechanical seals rated for continuous operation under pressure or vacuum.
• Flexible thermal management: compatible with electric heating mantles, circulating oil/water baths (e.g., JULABO FP/FL series), or optional internal cooling/heating coils—enabling precise isothermal or programmed ramp profiles.
• Benchtop footprint with ergonomic manual quick-clamp (M1/M2) or motorized vertical lift (M3) support frames—designed for operator safety, accessibility, and alignment repeatability during repeated vessel opening/closing cycles.

Sample Compatibility & Compliance

The VR-series reactors accommodate a broad spectrum of reactive chemistries involving organic solvents, aqueous solutions, slurries, and heterogeneous catalysts. The 316L stainless steel wetted surfaces exhibit excellent resistance to chloride-induced pitting and general corrosion in neutral to mildly acidic/basic environments. Optional FFKM O-rings extend compatibility to aggressive oxidizers (e.g., peracids, nitric acid) and high-temperature halogenated media. All models are constructed and documented in accordance with ISO 9001 quality management practices. While not certified for explosive atmospheres (ATEX), the reactors may be integrated into intrinsically safe lab infrastructure when paired with appropriate gas-handling modules and pressure-relief devices. Documentation packages include material traceability certificates (EN 10204 3.1), dimensional drawings, and PED-conformity declarations.

Software & Data Management

The VR-series operates as a hardware platform intended for integration with third-party process monitoring and control systems. No proprietary software is embedded; instead, analog and digital I/O interfaces (4–20 mA, 0–10 V, RS485 Modbus RTU) enable seamless connection to laboratory PLCs, SCADA platforms, or data acquisition systems (e.g., LabVIEW, DeltaV, or custom Python-based logging). When used with JULABO thermostats or Eurotherm controllers, real-time temperature setpoint synchronization and alarm relay outputs support GLP-compliant recordkeeping. Audit trails, electronic signatures, and 21 CFR Part 11 compliance are achieved at the system level—not within the reactor itself—making it suitable for regulated QC/QA workflows when deployed within validated instrument networks.

Applications

• Kinetic profiling of catalytic reactions under controlled H₂, CO, or inert gas atmospheres.
• Solvent-free esterification, transesterification, and amidation under reduced pressure to shift equilibrium.
• Thermal stability testing of APIs and excipients under accelerated aging conditions (ICH Q1A).
• Small-scale crystallization trials with in situ monitoring via PAT-compatible probe ports.
• Development of continuous-flow precursors in batch-to-continuous hybrid workflows.
• Corrosion testing of novel alloys or coatings in simulated process environments.

FAQ

What pressure and temperature ratings apply across all VR-series models?
All models are rated for continuous operation up to 5 bar(g) and 200 °C; short-term excursions beyond these limits are not recommended without prior engineering review.
Can the VR-500 be upgraded to accommodate a jacketed configuration post-purchase?
Yes—jacketed versions are factory-assembled but non-jacketed vessels can be retrofitted with jacket kits (including inlet/outlet manifolds and thermal insulation) subject to dimensional verification and pressure testing.
Is mechanical stirring available with magnetic coupling for vacuum applications?
No—the standard configuration uses top-entry mechanical seals; magnetic drive options are not offered due to torque limitations at higher viscosities and pressures.
Are CE markings and Declaration of Conformity provided with shipment?
Yes—each unit ships with CE marking affixed and a signed EU Declaration of Conformity referencing PED 2014/68/EU, Machinery Directive 2006/42/EC, and EMC Directive 2014/30/EU.
What documentation is included for IQ/OQ validation support?
Factory test reports (leak, hydrostatic, dimensional), material certifications, electrical schematics, and user manuals are supplied; site-specific IQ/OQ protocols must be developed by the end-user’s validation team in alignment with GxP requirements.